In California, a state legislator has introduced a bill, SB 1100, that would allow local legislative bodies to prevent "disruption" by silencing and ejecting speakers, or even clearing the entire audience and continuing an "open session" behind a locked door with no one watching. The bill was introduced behind the short title "Public meetings; orderly conduct."

https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202120220SB1100

The sell is that anti-LGBT speakers, absolute mean NAZIS!!!!, have been "bullying" a suburban city council in the Bay Area:

https://www.ktvu.com/news/whats-being-done-to-protect-los-gatos-mayor-who-is-bullied-harassed-at-meetings

It's exactly what you've described here. We need the power to silence you, because of the evil bigots! You're not in favor of EVIL BIGOTS, are you!?!?